A Ray of Light Enters an Equilateral Prism Made of Material

question 29

Multiple Choice

A ray of light enters an equilateral prism made of material with n = 1.45 at an angle of incidence $\theta$ .The internally refracted ray is parallel to the base of the prism.What is the angle of refraction for the ray leaving the prism?

• A) 46.5\(^{\circ}\)
• B) 30.0\(^{\circ}\)
• C) 20.2\(^{\circ}\)
• D) 15.7\(^{\circ}\)
• E) the ray won't leave the prism

---

Definitions:

Monetizing Program Costs

The process of identifying and quantifying the financial value derived from program activities, often for the purpose of enhancing sustainability or justifying expenditures.

Social Return

Social return often refers to the non-financial impact of organizations, specifically related to social and environmental factors, aimed at creating a positive change in society.

Financial Value

The economic worth or utility of an asset, investment, or financial decision, often determined by its potential to generate income, profit, or other forms of economic benefit.

National Charities Information Bureau

A former organization dedicated to providing information and evaluation on charities, now part of the Wise Giving Alliance.